The latest works 64

since December 19, 2020


"A simple demo of the extinction illusion"

Color disks sometimes appear to extinguish when observers keep their eyes fixed on the cross.

Copyright Akiyoshi Kitaoka 2021 (January 18)

Do you see this extinction illusion?

— Akiyoshi Kitaoka (@AkiyoshiKitaoka) January 18, 2021



(a blurred image)


"Expansionn of black gaps"

Black areas appear to expand laterally.

Copyright Akiyoshi Kitaoka 2021 (January 12)


"Moving snakes"

Snakes appear to move laterally.

Copyright Akiyoshi Kitaoka 2021 (January 12)


"Ramp-dependent width illusion"

Yellowish columns appear to be wider than their gaps, though they are the same width.

Copyright Akiyoshi Kitaoka 2020 (December 26)




"A demo of the chromatic Craik-O'Brien-Cornweet effect: green and pink"

Area A appears to be greenish while area B appears to be pinky, though each area is white except for the edges.

Copyright Akiyoshi Kitaoka 2020 (December 26)


"A demo of the chromatic Craik-O'Brien-Cornweet effect: yellow and blue"

Area A appears to be yellowish while area B appears to be bluish, though each area is white except for the edges.

Copyright Akiyoshi Kitaoka 2020 (December 26)


"A demo of the chromatic Craik-O'Brien-Cornweet effect: light blue and red"

Area A appears to be light blue while area B appears to be light red, though each area is white except for the edges.

Copyright Akiyoshi Kitaoka 2020 (December 26)






Copyright Akiyoshi Kitaoka 2020 (December 28)



"A demo of the chromatic Craik-O'Brien-Cornweet effect with illusory reddish columns"

Illusory reddish columns are observed, though all the pixels are cyan hue.

Copyright Akiyoshi Kitaoka 2020 (December 19)


"A demo of the chromatic Craik-O'Brien-Cornweet effect with illusory red-purplish columns"

Illusory red-purplish columns are observed, though all the pixels are green hue.

Copyright Akiyoshi Kitaoka 2020 (December 19)


"A demo of the chromatic Craik-O'Brien-Cornweet effect with illusory bluish columns"

Illusory bluish columns are observed, though all the pixels are blue hue.

Copyright Akiyoshi Kitaoka 2020 (December 19)


Copyright Akiyoshi Kitaoka 2020 (December 23)


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